Storm Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible - Likely
- Size
- 1–1.5
New storm slabs could form throughout the day on Saturday. These slabs will be largest and most reactive on northerly slopes.
Avalanche forecast
View on mapVancouver Island
Mar 14 – 15, 2025Avalanche Canada
Archived · expired 2 years ago
Avalanche danger
Sun
Mon
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Highlights
Keep an eye on the weather, as new snow accumulates avalanche danger will increase
Adjust your objectives if you see signs of instability
Avalanche problems
Confidence
Moderate
Avalanche Summary
On Wednesday, several natural storm slabs (up to size 1.5) were reported on northerly aspects at treeline. Human triggered storm slabs also easily triggered (up to size 1) on west, north and east aspects at treeline and below.
No new avalanches were reported on Thursday.
Snowpack Summary
Up to 20 cm of new snow accompanied by light to moderate southeast wind will likely form new wind slabs on northerly aspects on Saturday.
A crust from early March can be found down 40 to 100 cm. The snow above is well bonded to this crust. Below this, the snowpack is well consolidated and strong.
Weather Summary
Friday Night
Cloudy. 10 to 25 km/h southeast ridgetop wind. Treeline temperature -3 °C.
Saturday
Cloudy with 10 to 20 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -1 °C.
Sunday
Mix of sun and cloud with 0 to 2 cm of snow. 5 to 15 km/h southwest ridgetop wind. Treeline temperature -2 °C.
Monday
Increasing cloud in the afternoon with trace amounts of snow. 5 to 15 km/h northwest ridgetop wind. Treeline temperature -3 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for fresh storm slabs building throughout the day.
- As the storm slab problem worsens, the easy solution is to choose more conservative terrain.
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.